# std::chrono::time_point<Clock,Duration>::operator++, std::chrono::time_point<Clock,Duration>::operator--

From cppreference.com
< cpp‎ | chrono‎ | time point

constexpr time_point& operator++(); | (1) | (since C++20)
constexpr time_point operator++( int ); | (2) | (since C++20)
constexpr time_point& operator--(); | (3) | (since C++20)
constexpr time_point operator--( int ); | (4) | (since C++20)

Modifies the point in time *this represents by one tick of the `duration`.

If `d_` is a member variable holding the duration (i.e., time since epoch) of this `time_point` object,

1) Equivalent to ++d_; return *this;.
2) Equivalent to return time_point(d_++).
3) Equivalent to --d_; return *this;.
4) Equivalent to return time_point(d_--);.

### Parameters

(none)

### Return value

1,3) A reference to this `time_point` after modification.
2,4) A copy of the `time_point` made before modification.

### Example

| This section is incomplete Reason: no example

### See also

operator++operator++(int)operator--operator--(int) | increments or decrements the tick count (public member function of `std::chrono::duration<Rep,Period>`)
operator+=operator-= | modifies the time point by the given duration (public member function)
operator+operator- (C++11) | performs add and subtract operations involving a time point (function template)

Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/chrono/time_point/operator_inc_dec&oldid=160402"